Fix 'File Locked by Unknown Process' in Command Prompt
You try to delete, rename, or move a file, but Windows says it's locked by an unknown process. Th...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search Service Dependency Conflict with This Repair Tool
When Windows Search stops working, the culprit is often a dependency conflict. The service relies...
Fix Microsoft Store Error 502 Bad Gateway After Update
After a recent Windows update, you open the Microsoft Store and see 'Error 502 – Bad Gateway'. Th...
Fix Windows Defender Security Center Blank White Screen
You open Windows Security (formerly Windows Defender Security Center) and see only a blank white ...
How to Fix 'Port Already Allocated' for Windows Update Service
You might see a 'port already allocated' error when Windows Update tries to use a specific port t...
Fix Windows Update File Locked Registry Error
When Windows Update fails with an error like 0x80070020 or a message that a file is ...
Topic paths
Quick titles
Windows Outlook Offline Mode TroubleshootingFix Microsoft Store Command Not Found in Windows 10Outlook Not Receiving Emails: Step-by-Step FixesWindows Defender Low Memory Setup GuideClear Windows Cache via Command Prompt AdminWindows Defender Version Mismatch: How to FixGit Pull Conflict? How to Abort and Start OverResolve Module Not Found Error in CMD